A5082338747- Catalysts for Methane Reforming
- Catalytic Processes in Materials Science
- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- CO2 Reduction Techniques and Catalysts
- Mesoporous Materials and Catalysis
- Electrocatalysts for Energy Conversion
- Chemical Looping and Thermochemical Processes
- Subcritical and Supercritical Water Processes
- Advanced materials and composites
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Biodiesel Production and Applications
- Nanomaterials for catalytic reactions
- Zeolite Catalysis and Synthesis
- Carbon Dioxide Capture Technologies
- Advances in Oncology and Radiotherapy
- Supercapacitor Materials and Fabrication
- Membrane Separation and Gas Transport
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced Materials Characterization Techniques
University of Kentucky
2015-2024
A series of Co–Fe bimetallic catalysts was prepared, characterized, and studied for the hydrogenation carbon dioxide. The catalyst precursors were prepared via an oxalate coprecipitation method. Monometallic (Co or Fe) (Co–Fe) decomposed under a N2 flow at 400 °C further pretreated CO 250 °C. (before decomposition oxalates after activation) characterized by BET, TGA-MS, X-ray diffraction, CO-TPR, SEM, HR-TEM, Mössbauer spectroscopy techniques. reaction CO2 performed using in situ fixed-bed...
Hydrogenation of carbon monoxide was investigated for cobalt carbide synthesized from Co3O4 by CO carburization in a fixed-bed reactor. The characterized BET surface area, X-ray diffraction, scanning electron microscopy, absorption near edge spectroscopy, and extended fine structure spectroscopy. catalysts were tested the slurry phase using continuously stirred tank reactor at P = 2.0 MPa, H2/CO 2:1 temperature range 493–523 K, with space velocities varying 1 to 3 Nl h–1 gcat–1. results...
The bulk of the products that were synthesized from Fischer–Tropsch synthesis (FTS) is a wide range (C1–C70+) hydrocarbons, primarily straight-chained paraffins. Additional hydrocarbon products, which can also be majority, are linear olefins, specifically: 1-olefin, trans-2-olefin, and cis-2-olefin. Minor include isomerized predominantly methyl-branched paraffin, cyclic hydrocarbons mainly derived high-temperature FTS internal olefins. Combined, these provide 80–95% total (excluding CO2)...
Abstract Photocatalytic water splitting was performed on TiO 2 and metal‐containing (MTiO ) catalysts under UV light irradiation. added with various metals of different work functions, namely, Pt (5.93 eV), Pd (5.60 Cu (5.10 Ru (4.71 Ag (4.26 eV). The hydrogen production found to increase linearly increasing metal function. rate charge recombination increases decreasing function difference between the . were highly efficient co‐catalysts for generation from due their larger upward‐bent band...
The storage, utilization, and control of the greenhouse (CO2) gas is a topic interest for researchers in academia society. present review article dedicating to cover overall role ionic liquid-modified hybrid materials cycloaddition reactions. Special emphasis on synthesis various cyclic carbonate using liquid-based modified catalysts. Catalytic activity studies have discussed with respect process conditions their effects conversion product selectivity reaction CO2 styrene oxide. temperature...
The conversion of CO2 over a CoPt/Al2O3 catalyst was investigated. Single-gas adsorption studies indicated that carbon deposited on the by exposure to both and CO in absence H2 cofeed. When preadsorbed followed flow, methane produced, as well traces C3–C4 hydrocarbons, but no evidence reverse water gas shift reaction found. Use made carbon-14-labeled dioxide track selectivity during syngas mixtures with different ratios CO, CO2, H2. Absence 14C unconverted unequal molar concentration...
The performance of carbon-supported cobalt catalysts was compared with that Co/γ-Al2O3 reference for the Fischer–Tropsch synthesis (FTS) reaction. carbon support (CS) prepared using a hydrothermal method formed mostly spherical ∼300–800 nm carbons were first carbonized at 900 °C and then partially graphitized 1900 °C. FTS study conducted continuously stirred tank reactor, promoted Pt (0.2% Pt–10% Co) to facilitate reduction oxides. Catalysts by an evaporative (Co/CS-IWI) chemical vapor...
Abstract The hydrogenation of carbon dioxide over K‐promoted FeCo bimetallic catalysts prepared by sequential oxalate decomposition and carburization with CO was studied in a fixed‐bed reactor at 240 °C 1.2 MPa. initial 2 conversion found to be dependent on K loading, whereas both unpromoted (except 90Fe10Co3.0K) exhibited similar levels after few hours time stream. A decarburization study freshly activated used suggests that potassium increases the stability iron carbides graphitic under...